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| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_struct.html">pyarrow.types.is_struct</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_union.html">pyarrow.types.is_union</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_nested.html">pyarrow.types.is_nested</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_run_end_encoded.html">pyarrow.types.is_run_end_encoded</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_temporal.html">pyarrow.types.is_temporal</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_timestamp.html">pyarrow.types.is_timestamp</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_date.html">pyarrow.types.is_date</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_date32.html">pyarrow.types.is_date32</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_duration.html">pyarrow.types.is_duration</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_interval.html">pyarrow.types.is_interval</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_null.html">pyarrow.types.is_null</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_binary.html">pyarrow.types.is_binary</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_unicode.html">pyarrow.types.is_unicode</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_string.html">pyarrow.types.is_string</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_large_binary.html">pyarrow.types.is_large_binary</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_large_unicode.html">pyarrow.types.is_large_unicode</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_large_string.html">pyarrow.types.is_large_string</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_binary_view.html">pyarrow.types.is_binary_view</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_string_view.html">pyarrow.types.is_string_view</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_fixed_size_binary.html">pyarrow.types.is_fixed_size_binary</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_map.html">pyarrow.types.is_map</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_dictionary.html">pyarrow.types.is_dictionary</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.is_primitive.html">pyarrow.types.is_primitive</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.types.TypesEnum.html">pyarrow.types.TypesEnum</a></li> |
| </ul> |
| </details></li> |
| <li class="toctree-l3 has-children"><a class="reference internal" href="../../python/api/arrays.html">Arrays and Scalars</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.array.html">pyarrow.array</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Array.html">pyarrow.Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BooleanArray.html">pyarrow.BooleanArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FloatingPointArray.html">pyarrow.FloatingPointArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.IntegerArray.html">pyarrow.IntegerArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int8Array.html">pyarrow.Int8Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int16Array.html">pyarrow.Int16Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int32Array.html">pyarrow.Int32Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int64Array.html">pyarrow.Int64Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.NullArray.html">pyarrow.NullArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.NumericArray.html">pyarrow.NumericArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt8Array.html">pyarrow.UInt8Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt16Array.html">pyarrow.UInt16Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt32Array.html">pyarrow.UInt32Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt64Array.html">pyarrow.UInt64Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.HalfFloatArray.html">pyarrow.HalfFloatArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FloatArray.html">pyarrow.FloatArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DoubleArray.html">pyarrow.DoubleArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BinaryArray.html">pyarrow.BinaryArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StringArray.html">pyarrow.StringArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedSizeBinaryArray.html">pyarrow.FixedSizeBinaryArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeBinaryArray.html">pyarrow.LargeBinaryArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeStringArray.html">pyarrow.LargeStringArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BinaryViewArray.html">pyarrow.BinaryViewArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StringViewArray.html">pyarrow.StringViewArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Time32Array.html">pyarrow.Time32Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Time64Array.html">pyarrow.Time64Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Date32Array.html">pyarrow.Date32Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Date64Array.html">pyarrow.Date64Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.TimestampArray.html">pyarrow.TimestampArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DurationArray.html">pyarrow.DurationArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.MonthDayNanoIntervalArray.html">pyarrow.MonthDayNanoIntervalArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Decimal32Array.html">pyarrow.Decimal32Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Decimal64Array.html">pyarrow.Decimal64Array</a></li> |
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| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DictionaryArray.html">pyarrow.DictionaryArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ListArray.html">pyarrow.ListArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedSizeListArray.html">pyarrow.FixedSizeListArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeListArray.html">pyarrow.LargeListArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ListViewArray.html">pyarrow.ListViewArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeListViewArray.html">pyarrow.LargeListViewArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.MapArray.html">pyarrow.MapArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.RunEndEncodedArray.html">pyarrow.RunEndEncodedArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StructArray.html">pyarrow.StructArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UnionArray.html">pyarrow.UnionArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ExtensionArray.html">pyarrow.ExtensionArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedShapeTensorArray.html">pyarrow.FixedShapeTensorArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.OpaqueArray.html">pyarrow.OpaqueArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.JsonArray.html">pyarrow.JsonArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UuidArray.html">pyarrow.UuidArray</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Bool8Array.html">pyarrow.Bool8Array</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.scalar.html">pyarrow.scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.NA.html">pyarrow.NA</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Scalar.html">pyarrow.Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BooleanScalar.html">pyarrow.BooleanScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int8Scalar.html">pyarrow.Int8Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int16Scalar.html">pyarrow.Int16Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int32Scalar.html">pyarrow.Int32Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Int64Scalar.html">pyarrow.Int64Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.NullScalar.html">pyarrow.NullScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt8Scalar.html">pyarrow.UInt8Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt16Scalar.html">pyarrow.UInt16Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt32Scalar.html">pyarrow.UInt32Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UInt64Scalar.html">pyarrow.UInt64Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.HalfFloatScalar.html">pyarrow.HalfFloatScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FloatScalar.html">pyarrow.FloatScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DoubleScalar.html">pyarrow.DoubleScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BinaryScalar.html">pyarrow.BinaryScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StringScalar.html">pyarrow.StringScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedSizeBinaryScalar.html">pyarrow.FixedSizeBinaryScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeBinaryScalar.html">pyarrow.LargeBinaryScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeStringScalar.html">pyarrow.LargeStringScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.BinaryViewScalar.html">pyarrow.BinaryViewScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StringViewScalar.html">pyarrow.StringViewScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Time32Scalar.html">pyarrow.Time32Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Time64Scalar.html">pyarrow.Time64Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Date32Scalar.html">pyarrow.Date32Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Date64Scalar.html">pyarrow.Date64Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.TimestampScalar.html">pyarrow.TimestampScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DurationScalar.html">pyarrow.DurationScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.MonthDayNanoIntervalScalar.html">pyarrow.MonthDayNanoIntervalScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Decimal128Scalar.html">pyarrow.Decimal128Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Decimal256Scalar.html">pyarrow.Decimal256Scalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.DictionaryScalar.html">pyarrow.DictionaryScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.RunEndEncodedScalar.html">pyarrow.RunEndEncodedScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ListScalar.html">pyarrow.ListScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedSizeListScalar.html">pyarrow.FixedSizeListScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeListScalar.html">pyarrow.LargeListScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ListViewScalar.html">pyarrow.ListViewScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.LargeListViewScalar.html">pyarrow.LargeListViewScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.MapScalar.html">pyarrow.MapScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.StructScalar.html">pyarrow.StructScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UnionScalar.html">pyarrow.UnionScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ExtensionScalar.html">pyarrow.ExtensionScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.FixedShapeTensorScalar.html">pyarrow.FixedShapeTensorScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.OpaqueScalar.html">pyarrow.OpaqueScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.JsonScalar.html">pyarrow.JsonScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.UuidScalar.html">pyarrow.UuidScalar</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Bool8Scalar.html">pyarrow.Bool8Scalar</a></li> |
| </ul> |
| </details></li> |
| <li class="toctree-l3 has-children"><a class="reference internal" href="../../python/api/memory.html">Buffers and Memory</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.allocate_buffer.html">pyarrow.allocate_buffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.py_buffer.html">pyarrow.py_buffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.foreign_buffer.html">pyarrow.foreign_buffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Buffer.html">pyarrow.Buffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.ResizableBuffer.html">pyarrow.ResizableBuffer</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.Codec.html">pyarrow.Codec</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.compress.html">pyarrow.compress</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.decompress.html">pyarrow.decompress</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.MemoryPool.html">pyarrow.MemoryPool</a></li> |
| <li class="toctree-l4"><a class="reference internal" href="../../python/generated/pyarrow.default_memory_pool.html">pyarrow.default_memory_pool</a></li> |
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| <section id="cuda-support"> |
| <h1>CUDA support<a class="headerlink" href="#cuda-support" title="Link to this heading">#</a></h1> |
| <section id="contexts"> |
| <h2>Contexts<a class="headerlink" href="#contexts" title="Link to this heading">#</a></h2> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManagerE"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManagerE"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManagerE"></span><span id="arrow::cuda::CudaDeviceManager"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaDeviceManager</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManagerE" title="Link to this definition">#</a><br /></dt> |
| <dd><div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManager9GetDeviceEi"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManager9GetDeviceEi"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManager9GetDeviceEi"></span><span id="arrow::cuda::CudaDeviceManager::GetDevice__i"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager_1a2627914ca289f1d36267cb2303036d7e"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaDeviceE" title="arrow::cuda::CudaDevice"><span class="n"><span class="pre">CudaDevice</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetDevice</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">device_number</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManager9GetDeviceEi" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Get a <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_device"><span class="std std-ref">CudaDevice</span></a> instance for a particular device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>device_number</strong> – <strong>[in]</strong> the CUDA device number </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManager10GetContextEi"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManager10GetContextEi"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManager10GetContextEi"></span><span id="arrow::cuda::CudaDeviceManager::GetContext__i"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager_1abd6a643c8c43694ed38556251b906baf"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetContext</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">device_number</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManager10GetContextEi" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Get the CUDA driver context for a particular device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>device_number</strong> – <strong>[in]</strong> the CUDA device number </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>cached context </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManager16GetSharedContextEiPv"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManager16GetSharedContextEiPv"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManager16GetSharedContextEiPv"></span><span id="arrow::cuda::CudaDeviceManager::GetSharedContext__i.voidP"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager_1a5d20b6ca3f26613167b8efc29b091935"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetSharedContext</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">device_number</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">handle</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManager16GetSharedContextEiPv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Get the shared CUDA driver context for a particular device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>device_number</strong> – <strong>[in]</strong> the CUDA device number </p></li> |
| <li><p><strong>handle</strong> – <strong>[in]</strong> CUDA context handle created by another library </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>shared context </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManager12AllocateHostEi7int64_t"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManager12AllocateHostEi7int64_t"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManager12AllocateHostEi7int64_t"></span><span id="arrow::cuda::CudaDeviceManager::AllocateHost__i.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager_1a704c6ba67fd438c2f042657fa8404d60"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda14CudaHostBufferE" title="arrow::cuda::CudaHostBuffer"><span class="n"><span class="pre">CudaHostBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">AllocateHost</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">device_number</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManager12AllocateHostEi7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Allocate host memory with fast access to given GPU device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>device_number</strong> – <strong>[in]</strong> the CUDA device number </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>Host buffer or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaDeviceManager8FreeHostEPv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda17CudaDeviceManager8FreeHostEPv7int64_t"></span><span id="_CPPv2N5arrow4cuda17CudaDeviceManager8FreeHostEPv7int64_t"></span><span id="arrow::cuda::CudaDeviceManager::FreeHost__voidP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_manager_1ab1d79b1bfa5d3256f8c8005921ca573e"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FreeHost</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaDeviceManager8FreeHostEPv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Free host memory. </p> |
| <p>The given memory pointer must have been allocated with AllocateHost. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContextE"> |
| <span id="_CPPv3N5arrow4cuda11CudaContextE"></span><span id="_CPPv2N5arrow4cuda11CudaContextE"></span><span id="arrow::cuda::CudaContext"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaContext</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">enable_shared_from_this</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContextE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Object-oriented interface to the low-level CUDA driver API. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext8AllocateE7int64_t"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext8AllocateE7int64_t"></span><span id="_CPPv2N5arrow4cuda11CudaContext8AllocateE7int64_t"></span><span id="arrow::cuda::CudaContext::Allocate__int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1aa51b96ca1438d0a62b6c56f5f2370ed6"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">unique_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="arrow::cuda::CudaBuffer"><span class="n"><span class="pre">CudaBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Allocate</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext8AllocateE7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Allocate CUDA memory on GPU device for this context. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>the allocated buffer </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext4FreeEPv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext4FreeEPv7int64_t"></span><span id="_CPPv2N5arrow4cuda11CudaContext4FreeEPv7int64_t"></span><span id="arrow::cuda::CudaContext::Free__voidP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1aa08710d029fe38ea3ec8ad065ffe50fa"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Free</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">device_ptr</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext4FreeEPv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Release CUDA memory on GPU device for this context. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>device_ptr</strong> – <strong>[in]</strong> the buffer address </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext4ViewEP7uint8_t7int64_t"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext4ViewEP7uint8_t7int64_t"></span><span id="_CPPv2N5arrow4cuda11CudaContext4ViewEP7uint8_t7int64_t"></span><span id="arrow::cuda::CudaContext::View__uint8_tP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a4102a915d50b435518e6309a6533cbb1"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="arrow::cuda::CudaBuffer"><span class="n"><span class="pre">CudaBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">View</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext4ViewEP7uint8_t7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Create a view of CUDA memory on GPU device of this context. </p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>The caller is responsible for allocating and freeing the memory as well as ensuring that the memory belongs to the CUDA context that this <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_context"><span class="std std-ref">CudaContext</span></a> instance holds. </p> |
| </div> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>data</strong> – <strong>[in]</strong> the starting device address </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>the view buffer</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext13OpenIpcBufferERK16CudaIpcMemHandle"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext13OpenIpcBufferERK16CudaIpcMemHandle"></span><span id="_CPPv2N5arrow4cuda11CudaContext13OpenIpcBufferERK16CudaIpcMemHandle"></span><span id="arrow::cuda::CudaContext::OpenIpcBuffer__CudaIpcMemHandleCR"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a65ebcb7d89d6732d5f35338b50cd7ed7"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="arrow::cuda::CudaBuffer"><span class="n"><span class="pre">CudaBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">OpenIpcBuffer</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandleE" title="arrow::cuda::CudaIpcMemHandle"><span class="n"><span class="pre">CudaIpcMemHandle</span></span></a><span class="w"> </span><span class="p"><span class="pre">&</span></span><span class="n sig-param"><span class="pre">ipc_handle</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext13OpenIpcBufferERK16CudaIpcMemHandle" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Open existing CUDA IPC memory handle. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>ipc_handle</strong> – <strong>[in]</strong> opaque pointer to CUipcMemHandle (driver API) </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>a <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> referencing the IPC segment </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext14CloseIpcBufferEP10CudaBuffer"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext14CloseIpcBufferEP10CudaBuffer"></span><span id="_CPPv2N5arrow4cuda11CudaContext14CloseIpcBufferEP10CudaBuffer"></span><span id="arrow::cuda::CudaContext::CloseIpcBuffer__CudaBufferP"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a3228bd973c2da795b1b916f81d3bd164"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CloseIpcBuffer</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="arrow::cuda::CudaBuffer"><span class="n"><span class="pre">CudaBuffer</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">buffer</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext14CloseIpcBufferEP10CudaBuffer" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Close memory mapped with IPC buffer. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>buffer</strong> – <strong>[in]</strong> a <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> referencing </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext11SynchronizeEv"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext11SynchronizeEv"></span><span id="_CPPv2N5arrow4cuda11CudaContext11SynchronizeEv"></span><span id="arrow::cuda::CudaContext::Synchronize__void"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a80b22b35b08acac1c0a7b796932612c0"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Synchronize</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext11SynchronizeEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Block until the all device tasks are completed. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda11CudaContext6handleEv"> |
| <span id="_CPPv3NK5arrow4cuda11CudaContext6handleEv"></span><span id="_CPPv2NK5arrow4cuda11CudaContext6handleEv"></span><span id="arrow::cuda::CudaContext::handleC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a335a3caffacc4148f18495f989cd44fd"></span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">handle</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda11CudaContext6handleEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Expose CUDA context handle to other libraries. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda11CudaContext14memory_managerEv"> |
| <span id="_CPPv3NK5arrow4cuda11CudaContext14memory_managerEv"></span><span id="_CPPv2NK5arrow4cuda11CudaContext14memory_managerEv"></span><span id="arrow::cuda::CudaContext::memory_managerC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a808c6eba3bfbb9e99dabf3e73eeb7d44"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda17CudaMemoryManagerE" title="arrow::cuda::CudaMemoryManager"><span class="n"><span class="pre">CudaMemoryManager</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">memory_manager</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda11CudaContext14memory_managerEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the default memory manager tied to this context’s device. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda11CudaContext6deviceEv"> |
| <span id="_CPPv3NK5arrow4cuda11CudaContext6deviceEv"></span><span id="_CPPv2NK5arrow4cuda11CudaContext6deviceEv"></span><span id="arrow::cuda::CudaContext::deviceC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1adc2b23c0907031bf8fb5beb1ea82b3d2"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaDeviceE" title="arrow::cuda::CudaDevice"><span class="n"><span class="pre">CudaDevice</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda11CudaContext6deviceEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the device instance associated with this context. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda11CudaContext13device_numberEv"> |
| <span id="_CPPv3NK5arrow4cuda11CudaContext13device_numberEv"></span><span id="_CPPv2NK5arrow4cuda11CudaContext13device_numberEv"></span><span id="arrow::cuda::CudaContext::device_numberC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1ab5427be57b455cffa58b353ad8d6fdbf"></span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device_number</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda11CudaContext13device_numberEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the logical device number. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda11CudaContext16GetDeviceAddressEP7uint8_t"> |
| <span id="_CPPv3N5arrow4cuda11CudaContext16GetDeviceAddressEP7uint8_t"></span><span id="_CPPv2N5arrow4cuda11CudaContext16GetDeviceAddressEP7uint8_t"></span><span id="arrow::cuda::CudaContext::GetDeviceAddress__uint8_tP"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_context_1a3f561eb66c0675ea90dd3c4cc256cfbe"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">uintptr_t</span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetDeviceAddress</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">addr</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda11CudaContext16GetDeviceAddressEP7uint8_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the device address that is reachable from kernels running in the context. </p> |
| <p> |
| The device address is defined as a memory address accessible by device. While it is often a device memory address, it can be also a host memory address, for instance, when the memory is allocated as host memory (using cudaMallocHost or cudaHostAlloc) or as managed memory (using cudaMallocManaged) or the host memory is page-locked (using cudaHostRegister). </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>addr</strong> – <strong>[in]</strong> device or host memory address </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>the device address</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| </section> |
| <section id="devices"> |
| <h2>Devices<a class="headerlink" href="#devices" title="Link to this heading">#</a></h2> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDeviceE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDeviceE"></span><span id="_CPPv2N5arrow4cuda10CudaDeviceE"></span><span id="arrow::cuda::CudaDevice"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaDevice</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDeviceE" title="Link to this definition">#</a><br /></dt> |
| <dd><p><a class="reference internal" href="memory.html#classarrow_1_1_device"><span class="std std-ref">Device</span></a> implementation for CUDA. </p> |
| <p>Each <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_device"><span class="std std-ref">CudaDevice</span></a> instance is tied to a particular CUDA device (identified by its logical device number). </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice9type_nameEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice9type_nameEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice9type_nameEv"></span><span id="arrow::cuda::CudaDevice::type_nameC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a41ff14cdaf3f6daf29b0ce1a7415cc3b"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">type_name</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice9type_nameEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>A shorthand for this device’s type. </p> |
| <p>The returned value is different for each device class, but is the same for all instances of a given class. It can be used as a replacement for RTTI. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice8ToStringEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice8ToStringEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice8ToStringEv"></span><span id="arrow::cuda::CudaDevice::ToStringC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1ae741b9314ceb089df43cd9d3ea9a05c8"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToString</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice8ToStringEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>A human-readable description of the device. </p> |
| <p>The returned value should be detailed enough to distinguish between different instances, where necessary. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice6EqualsERK6Device"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice6EqualsERK6Device"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice6EqualsERK6Device"></span><span id="arrow::cuda::CudaDevice::Equals__DeviceCRC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a632ead1002d4f6a198f9e2cc875afe18"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Equals</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">&</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice6EqualsERK6Device" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Whether this instance points to the same device as another one. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice22default_memory_managerEv"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice22default_memory_managerEv"></span><span id="_CPPv2N5arrow4cuda10CudaDevice22default_memory_managerEv"></span><span id="arrow::cuda::CudaDevice::default_memory_manager"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a8a3a3ce18dc6915404dbe301ab5d1325"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow13MemoryManagerE" title="arrow::MemoryManager"><span class="n"><span class="pre">MemoryManager</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">default_memory_manager</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice22default_memory_managerEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return a <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a> instance tied to this device. </p> |
| <p>The returned instance uses default parameters for this device type’s <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a> implementation. Some devices also allow constructing <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a> instances with non-default parameters. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice11device_typeEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice11device_typeEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice11device_typeEv"></span><span id="arrow::cuda::CudaDevice::device_typeC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a631303d5f948458324340b48de7c6685"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="n"><span class="pre">DeviceAllocationType</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device_type</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice11device_typeEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the DeviceAllocationType of this device. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice9device_idEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice9device_idEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice9device_idEv"></span><span id="arrow::cuda::CudaDevice::device_idC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a59cb05711c6a3d6ec76254e719fc71a9"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device_id</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice9device_idEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>A device ID to identify this device if there are multiple of this type. </p> |
| <p>If there is no “device_id” equivalent (such as for the main CPU device on non-numa systems) returns -1. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice13device_numberEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice13device_numberEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice13device_numberEv"></span><span id="arrow::cuda::CudaDevice::device_numberC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1afbde12a21ab99759801332997f1f39c6"></span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device_number</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice13device_numberEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the device logical number. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice11device_nameEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice11device_nameEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice11device_nameEv"></span><span id="arrow::cuda::CudaDevice::device_nameC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a8e9ef59ab09a8eb774ba25c788f17e95"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">device_name</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice11device_nameEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the GPU model name. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice12total_memoryEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice12total_memoryEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice12total_memoryEv"></span><span id="arrow::cuda::CudaDevice::total_memoryC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1ae1e25a912004c83bb6af55574a74da00"></span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">total_memory</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice12total_memoryEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return total memory on this device. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice6handleEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice6handleEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice6handleEv"></span><span id="arrow::cuda::CudaDevice::handleC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1ab5ef7531f8a55cfa3589ad7b57f6a9bd"></span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">handle</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice6handleEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return a raw CUDA device handle. </p> |
| <p>The returned value can be used to expose this device to other libraries. It should be interpreted as <code class="docutils literal notranslate"><span class="pre">CUdevice</span></code>. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice10GetContextEv"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice10GetContextEv"></span><span id="_CPPv2N5arrow4cuda10CudaDevice10GetContextEv"></span><span id="arrow::cuda::CudaDevice::GetContext"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a5f7c4bac72d83130addfdd0fb21055c3"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetContext</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice10GetContextEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Get a CUDA driver context for this device. </p> |
| <p>The returned context is associated with the primary CUDA context for the device. This is the recommended way of getting a context for a device, as it allows interoperating transparently with any library using the primary CUDA context API. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice16GetSharedContextEPv"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice16GetSharedContextEPv"></span><span id="_CPPv2N5arrow4cuda10CudaDevice16GetSharedContextEPv"></span><span id="arrow::cuda::CudaDevice::GetSharedContext__voidP"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a8ad54d0c5dc58f1841428b9d8a8bcc5d"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetSharedContext</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">handle</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice16GetSharedContextEPv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Get a CUDA driver context for this device, using an existing handle. </p> |
| <p>The handle is not owned: it will not be released when the <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_context"><span class="std std-ref">CudaContext</span></a> is destroyed. This function should only be used if you need interoperation with a library that uses a non-primary context.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>handle</strong> – <strong>[in]</strong> CUDA context handle created by another library </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice18AllocateHostBufferE7int64_t"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice18AllocateHostBufferE7int64_t"></span><span id="_CPPv2N5arrow4cuda10CudaDevice18AllocateHostBufferE7int64_t"></span><span id="arrow::cuda::CudaDevice::AllocateHostBuffer__int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1ae5671d6b3bb43698b347ab49d6f80fc5"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda14CudaHostBufferE" title="arrow::cuda::CudaHostBuffer"><span class="n"><span class="pre">CudaHostBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">AllocateHostBuffer</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">size</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice18AllocateHostBufferE7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Allocate a host-residing, GPU-accessible buffer. </p> |
| <p>The buffer is allocated using this device’s primary context.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>size</strong> – <strong>[in]</strong> The buffer size in bytes </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice10MakeStreamEj"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice10MakeStreamEj"></span><span id="_CPPv2N5arrow4cuda10CudaDevice10MakeStreamEj"></span><span id="arrow::cuda::CudaDevice::MakeStream__unsigned-i"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1aa548ab6413516818a50ca6c76c7d22c2"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device6StreamE" title="arrow::Device::Stream"><span class="n"><span class="pre">Stream</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">MakeStream</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">unsigned</span></span><span class="w"> </span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">flags</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice10MakeStreamEj" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Create a CUstream wrapper in the current context. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice10WrapStreamEPvN6Stream12release_fn_tE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice10WrapStreamEPvN6Stream12release_fn_tE"></span><span id="_CPPv2N5arrow4cuda10CudaDevice10WrapStreamEPvN6Stream12release_fn_tE"></span><span id="arrow::cuda::CudaDevice::WrapStream__voidP.Stream::release_fn_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1aa46475ed815a8142c00517b8f8176129"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device6StreamE" title="arrow::Device::Stream"><span class="n"><span class="pre">Stream</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">WrapStream</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">device_stream</span></span>, <a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaDevice6StreamE" title="arrow::cuda::CudaDevice::Stream"><span class="n"><span class="pre">Stream</span></span></a><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">release_fn_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">release_fn</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice10WrapStreamEPvN6Stream12release_fn_tE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Wrap a pointer to an existing stream. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>device_stream</strong> – passed in stream (should be a CUstream*) </p></li> |
| <li><p><strong>release_fn</strong> – destructor to free the stream. <code class="docutils literal notranslate"><span class="pre">nullptr</span></code> may be passed to indicate there is no destruction/freeing necessary. </p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-static-functions">Public Static Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice4MakeEi"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice4MakeEi"></span><span id="_CPPv2N5arrow4cuda10CudaDevice4MakeEi"></span><span id="arrow::cuda::CudaDevice::Make__i"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1a9d3a506ebff6cc6acd2a60a899b03994"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaDeviceE" title="arrow::cuda::CudaDevice"><span class="n"><span class="pre">CudaDevice</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Make</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">device_number</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice4MakeEi" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return a <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_device"><span class="std std-ref">CudaDevice</span></a> instance for a particular device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>device_number</strong> – <strong>[in]</strong> the CUDA device number </p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice6StreamE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice6StreamE"></span><span id="_CPPv2N5arrow4cuda10CudaDevice6StreamE"></span><span id="arrow::cuda::CudaDevice::Stream"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_stream"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Stream</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device6StreamE" title="arrow::Device::Stream"><span class="n"><span class="pre">Stream</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice6StreamE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>EXPERIMENTAL: Wrapper for CUstreams. </p> |
| <p>Does not <em>own</em> the CUstream object which must be separately constructed and freed using cuStreamCreate and cuStreamDestroy (or equivalent). Default construction will use the cuda default stream, and does not allow construction from literal 0 or nullptr. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice6Stream9WaitEventERKN6Device9SyncEventE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice6Stream9WaitEventERKN6Device9SyncEventE"></span><span id="_CPPv2N5arrow4cuda10CudaDevice6Stream9WaitEventERKN6Device9SyncEventE"></span><span id="arrow::cuda::CudaDevice::Stream::WaitEvent__Device::SyncEventCR"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_stream_1a4441e72374728818f29728c33c977052"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">WaitEvent</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device9SyncEventE" title="arrow::Device::SyncEvent"><span class="n"><span class="pre">SyncEvent</span></span></a><span class="p"><span class="pre">&</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice6Stream9WaitEventERKN6Device9SyncEventE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Make the stream wait on the provided event. </p> |
| <p>Tells the stream that it should wait until the synchronization event is completed without blocking the CPU. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaDevice6Stream11SynchronizeEv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaDevice6Stream11SynchronizeEv"></span><span id="_CPPv2NK5arrow4cuda10CudaDevice6Stream11SynchronizeEv"></span><span id="arrow::cuda::CudaDevice::Stream::SynchronizeC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_stream_1a204b6f4d47ff6adaa7866fc00a8e6093"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Synchronize</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaDevice6Stream11SynchronizeEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Blocks the current thread until a stream’s remaining tasks are completed. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice9SyncEventE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice9SyncEventE"></span><span id="_CPPv2N5arrow4cuda10CudaDevice9SyncEventE"></span><span id="arrow::cuda::CudaDevice::SyncEvent"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_sync_event"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">SyncEvent</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device9SyncEventE" title="arrow::Device::SyncEvent"><span class="n"><span class="pre">SyncEvent</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEventE" title="Link to this definition">#</a><br /></dt> |
| <dd><div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice9SyncEvent4WaitEv"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice9SyncEvent4WaitEv"></span><span id="_CPPv2N5arrow4cuda10CudaDevice9SyncEvent4WaitEv"></span><span id="arrow::cuda::CudaDevice::SyncEvent::Wait"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_sync_event_1a6494868d86bf12d4609126cfc4171082"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Wait</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEvent4WaitEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Block until the sync event is marked completed. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaDevice9SyncEvent6RecordERKN6Device6StreamE"> |
| <span id="_CPPv3N5arrow4cuda10CudaDevice9SyncEvent6RecordERKN6Device6StreamE"></span><span id="_CPPv2N5arrow4cuda10CudaDevice9SyncEvent6RecordERKN6Device6StreamE"></span><span id="arrow::cuda::CudaDevice::SyncEvent::Record__Device::StreamCR"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_device_1_1_sync_event_1a708bc65ff1eefacce2641ad453f18503"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Record</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device6StreamE" title="arrow::Device::Stream"><span class="n"><span class="pre">Stream</span></span></a><span class="p"><span class="pre">&</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEvent6RecordERKN6Device6StreamE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Record the wrapped event on the stream. </p> |
| <p>Once the stream completes the tasks previously added to it, it will trigger the event. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManagerE"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManagerE"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManagerE"></span><span id="arrow::cuda::CudaMemoryManager"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaMemoryManager</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow13MemoryManagerE" title="arrow::MemoryManager"><span class="n"><span class="pre">MemoryManager</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManagerE" title="Link to this definition">#</a><br /></dt> |
| <dd><p><a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a> implementation for CUDA. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferReaderENSt10shared_ptrI6BufferEE"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManager15GetBufferReaderENSt10shared_ptrI6BufferEE"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManager15GetBufferReaderENSt10shared_ptrI6BufferEE"></span><span id="arrow::cuda::CudaMemoryManager::GetBufferReader__std::shared_ptr:Buffer:"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1ad4de6b91aa11ea7886db25d911faf82d"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">io</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="io.html#_CPPv4N5arrow2io16RandomAccessFileE" title="arrow::io::RandomAccessFile"><span class="n"><span class="pre">RandomAccessFile</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetBufferReader</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="n sig-param"><span class="pre">buf</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferReaderENSt10shared_ptrI6BufferEE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Create a RandomAccessFile to read a particular buffer. </p> |
| <p>The given buffer must be tied to this <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a>.</p> |
| <p>See also the <a class="reference internal" href="memory.html#classarrow_1_1_buffer_1aeacfa7e7ff56af24b523cff17775698b"><span class="std std-ref">Buffer::GetReader</span></a> shorthand. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferWriterENSt10shared_ptrI6BufferEE"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManager15GetBufferWriterENSt10shared_ptrI6BufferEE"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManager15GetBufferWriterENSt10shared_ptrI6BufferEE"></span><span id="arrow::cuda::CudaMemoryManager::GetBufferWriter__std::shared_ptr:Buffer:"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1ad5034c2d5520b79adfe02d046bdeb798"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">io</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="io.html#_CPPv4N5arrow2io12OutputStreamE" title="arrow::io::OutputStream"><span class="n"><span class="pre">OutputStream</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetBufferWriter</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="n sig-param"><span class="pre">buf</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferWriterENSt10shared_ptrI6BufferEE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Create a OutputStream to write to a particular buffer. </p> |
| <p>The given buffer must be mutable and tied to this <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a>. The returned stream object writes into the buffer’s underlying memory (but it won’t resize it).</p> |
| <p>See also the <a class="reference internal" href="memory.html#classarrow_1_1_buffer_1ad3aff6f979cd6ebf0497fba6108c8f7f"><span class="std std-ref">Buffer::GetWriter</span></a> shorthand. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManager14AllocateBufferE7int64_t"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManager14AllocateBufferE7int64_t"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManager14AllocateBufferE7int64_t"></span><span id="arrow::cuda::CudaMemoryManager::AllocateBuffer__int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1a63147b0035364482e6043809cd569426"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">unique_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">AllocateBuffer</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">size</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManager14AllocateBufferE7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Allocate a (mutable) <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a>. </p> |
| <p>The buffer will be allocated in the device’s memory. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda17CudaMemoryManager11cuda_deviceEv"> |
| <span id="_CPPv3NK5arrow4cuda17CudaMemoryManager11cuda_deviceEv"></span><span id="_CPPv2NK5arrow4cuda17CudaMemoryManager11cuda_deviceEv"></span><span id="arrow::cuda::CudaMemoryManager::cuda_deviceC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1ab9319d56db3710f1a0bca1a1b75af1ac"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaDeviceE" title="arrow::cuda::CudaDevice"><span class="n"><span class="pre">CudaDevice</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">cuda_device</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda17CudaMemoryManager11cuda_deviceEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>The <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_device"><span class="std std-ref">CudaDevice</span></a> instance tied to this <a class="reference internal" href="memory.html#classarrow_1_1_memory_manager"><span class="std std-ref">MemoryManager</span></a>. </p> |
| <p>This is a useful shorthand returning a concrete-typed pointer, avoiding having to cast the <code class="docutils literal notranslate"><a class="reference internal" href="memory.html#classarrow_1_1_memory_manager_1a0bd3ad591750cd15277cf569eb6e985e"><span class="std std-ref"><span class="pre">device()</span></span></a></code> result. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManager19MakeDeviceSyncEventEv"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManager19MakeDeviceSyncEventEv"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManager19MakeDeviceSyncEventEv"></span><span id="arrow::cuda::CudaMemoryManager::MakeDeviceSyncEvent"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1a29736553d34864fcda5da377605e8b7b"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device9SyncEventE" title="arrow::Device::SyncEvent"><span class="n"><span class="pre">SyncEvent</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">MakeDeviceSyncEvent</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManager19MakeDeviceSyncEventEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Creates a wrapped CUevent. </p> |
| <p>Will call cuEventCreate and it will call cuEventDestroy internally when the event is destructed. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda17CudaMemoryManager19WrapDeviceSyncEventEPvN6Device9SyncEvent12release_fn_tE"> |
| <span id="_CPPv3N5arrow4cuda17CudaMemoryManager19WrapDeviceSyncEventEPvN6Device9SyncEvent12release_fn_tE"></span><span id="_CPPv2N5arrow4cuda17CudaMemoryManager19WrapDeviceSyncEventEPvN6Device9SyncEvent12release_fn_tE"></span><span id="arrow::cuda::CudaMemoryManager::WrapDeviceSyncEvent__voidP.Device::SyncEvent::release_fn_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_memory_manager_1a987e93dc73f2f5e1e5f06de81970b7f1"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device9SyncEventE" title="arrow::Device::SyncEvent"><span class="n"><span class="pre">SyncEvent</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">WrapDeviceSyncEvent</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">sync_event</span></span>, <a class="reference internal" href="memory.html#_CPPv4N5arrow6DeviceE" title="arrow::Device"><span class="n"><span class="pre">Device</span></span></a><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6Device9SyncEventE" title="arrow::Device::SyncEvent"><span class="n"><span class="pre">SyncEvent</span></span></a><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">release_fn_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">release_sync_event</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda17CudaMemoryManager19WrapDeviceSyncEventEPvN6Device9SyncEvent12release_fn_tE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Wraps an existing event into a sync event. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>sync_event</strong> – the event to wrap, must be a CUevent* </p></li> |
| <li><p><strong>release_sync_event</strong> – a function to call during destruction, <code class="docutils literal notranslate"><span class="pre">nullptr</span></code> or a no-op function can be passed to indicate ownership is maintained externally </p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| </section> |
| <section id="buffers"> |
| <h2>Buffers<a class="headerlink" href="#buffers" title="Link to this heading">#</a></h2> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBufferE"> |
| <span id="_CPPv3N5arrow4cuda10CudaBufferE"></span><span id="_CPPv2N5arrow4cuda10CudaBufferE"></span><span id="arrow::cuda::CudaBuffer"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaBuffer</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>An Arrow buffer located on a GPU device. </p> |
| <p>Be careful using this in any Arrow code which may not be GPU-aware </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda10CudaBuffer10CopyToHostEK7int64_tK7int64_tPv"> |
| <span id="_CPPv3NK5arrow4cuda10CudaBuffer10CopyToHostEK7int64_tK7int64_tPv"></span><span id="_CPPv2NK5arrow4cuda10CudaBuffer10CopyToHostEK7int64_tK7int64_tPv"></span><span id="arrow::cuda::CudaBuffer::CopyToHost__int64_tC.int64_tC.voidPC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1a68ec37adb9fc33fb2dbc93b8591eb80b"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CopyToHost</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">position</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span>, <span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">out</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda10CudaBuffer10CopyToHostEK7int64_tK7int64_tPv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Copy memory from GPU device to CPU host. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>position</strong> – <strong>[in]</strong> start position inside buffer to copy bytes from </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes to copy </p></li> |
| <li><p><strong>out</strong> – <strong>[out]</strong> start address of the host memory area to copy to </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBuffer12CopyFromHostEK7int64_tPKv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda10CudaBuffer12CopyFromHostEK7int64_tPKv7int64_t"></span><span id="_CPPv2N5arrow4cuda10CudaBuffer12CopyFromHostEK7int64_tPKv7int64_t"></span><span id="arrow::cuda::CudaBuffer::CopyFromHost__int64_tC.voidCP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1a941397f8ec48d7578669dea25c601559"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CopyFromHost</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">position</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBuffer12CopyFromHostEK7int64_tPKv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Copy memory to device at position. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>position</strong> – <strong>[in]</strong> start position to copy bytes to </p></li> |
| <li><p><strong>data</strong> – <strong>[in]</strong> the host data to copy </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes to copy </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBuffer14CopyFromDeviceEK7int64_tPKv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda10CudaBuffer14CopyFromDeviceEK7int64_tPKv7int64_t"></span><span id="_CPPv2N5arrow4cuda10CudaBuffer14CopyFromDeviceEK7int64_tPKv7int64_t"></span><span id="arrow::cuda::CudaBuffer::CopyFromDevice__int64_tC.voidCP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1a41dfd69a882ea4fb138d8b25cc495cfe"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CopyFromDevice</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">position</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBuffer14CopyFromDeviceEK7int64_tPKv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Copy memory from device to device at position. </p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>It is assumed that both source and destination device memories have been allocated within the same context. </p> |
| </div> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>position</strong> – <strong>[in]</strong> start position inside buffer to copy bytes to </p></li> |
| <li><p><strong>data</strong> – <strong>[in]</strong> start address of the device memory area to copy from </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes to copy </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBuffer21CopyFromAnotherDeviceERKNSt10shared_ptrI11CudaContextEEK7int64_tPKv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda10CudaBuffer21CopyFromAnotherDeviceERKNSt10shared_ptrI11CudaContextEEK7int64_tPKv7int64_t"></span><span id="_CPPv2N5arrow4cuda10CudaBuffer21CopyFromAnotherDeviceERKNSt10shared_ptrI11CudaContextEEK7int64_tPKv7int64_t"></span><span id="arrow::cuda::CudaBuffer::CopyFromAnotherDevice__std::shared_ptr:CudaContext:CR.int64_tC.voidCP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1ad6338774ba17d06ccd9423e5dd4e61e9"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CopyFromAnotherDevice</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="p"><span class="pre">&</span></span><span class="n sig-param"><span class="pre">src_ctx</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">position</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBuffer21CopyFromAnotherDeviceERKNSt10shared_ptrI11CudaContextEEK7int64_tPKv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Copy memory from another device to device at position. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>src_ctx</strong> – <strong>[in]</strong> context of the source device memory </p></li> |
| <li><p><strong>position</strong> – <strong>[in]</strong> start position inside buffer to copy bytes to </p></li> |
| <li><p><strong>data</strong> – <strong>[in]</strong> start address of the another device memory area to copy from </p></li> |
| <li><p><strong>nbytes</strong> – <strong>[in]</strong> number of bytes to copy </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBuffer12ExportForIpcEv"> |
| <span id="_CPPv3N5arrow4cuda10CudaBuffer12ExportForIpcEv"></span><span id="_CPPv2N5arrow4cuda10CudaBuffer12ExportForIpcEv"></span><span id="arrow::cuda::CudaBuffer::ExportForIpc"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1a4907f83dd4273de3a92fee611eede1d7"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandleE" title="arrow::cuda::CudaIpcMemHandle"><span class="n"><span class="pre">CudaIpcMemHandle</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ExportForIpc</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBuffer12ExportForIpcEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Expose this device buffer as IPC memory which can be used in other processes. </p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>After calling this function, this device memory will not be freed when the <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> is destructed </p> |
| </div> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><p>Handle or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-static-functions">Public Static Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda10CudaBuffer10FromBufferENSt10shared_ptrI6BufferEE"> |
| <span id="_CPPv3N5arrow4cuda10CudaBuffer10FromBufferENSt10shared_ptrI6BufferEE"></span><span id="_CPPv2N5arrow4cuda10CudaBuffer10FromBufferENSt10shared_ptrI6BufferEE"></span><span id="arrow::cuda::CudaBuffer::FromBuffer__std::shared_ptr:Buffer:"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_1aad96b14462286fd70786b7a697476a99"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda10CudaBufferE" title="arrow::cuda::CudaBuffer"><span class="n"><span class="pre">CudaBuffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FromBuffer</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="n sig-param"><span class="pre">buffer</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda10CudaBuffer10FromBufferENSt10shared_ptrI6BufferEE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Convert back generic buffer into <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a>. </p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>This function returns an error if the buffer isn’t backed by GPU memory </p> |
| </div> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>buffer</strong> – <strong>[in]</strong> buffer to convert </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda14CudaHostBufferE"> |
| <span id="_CPPv3N5arrow4cuda14CudaHostBufferE"></span><span id="_CPPv2N5arrow4cuda14CudaHostBufferE"></span><span id="arrow::cuda::CudaHostBuffer"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_host_buffer"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaHostBuffer</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow13MutableBufferE" title="arrow::MutableBuffer"><span class="n"><span class="pre">MutableBuffer</span></span></a><a class="headerlink" href="#_CPPv4N5arrow4cuda14CudaHostBufferE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Device-accessible CPU memory created using cudaHostAlloc. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda14CudaHostBuffer16GetDeviceAddressERKNSt10shared_ptrI11CudaContextEE"> |
| <span id="_CPPv3N5arrow4cuda14CudaHostBuffer16GetDeviceAddressERKNSt10shared_ptrI11CudaContextEE"></span><span id="_CPPv2N5arrow4cuda14CudaHostBuffer16GetDeviceAddressERKNSt10shared_ptrI11CudaContextEE"></span><span id="arrow::cuda::CudaHostBuffer::GetDeviceAddress__std::shared_ptr:CudaContext:CR"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_host_buffer_1a72e8c02002772f35b027bf6c0c9f71ec"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">uintptr_t</span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetDeviceAddress</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda11CudaContextE" title="arrow::cuda::CudaContext"><span class="n"><span class="pre">CudaContext</span></span></a><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="p"><span class="pre">&</span></span><span class="n sig-param"><span class="pre">ctx</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda14CudaHostBuffer16GetDeviceAddressERKNSt10shared_ptrI11CudaContextEE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return a device address the GPU can read this memory from. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| </section> |
| <section id="memory-input-output"> |
| <h2>Memory Input / Output<a class="headerlink" href="#memory-input-output" title="Link to this heading">#</a></h2> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferReaderE"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferReaderE"></span><span id="_CPPv2N5arrow4cuda16CudaBufferReaderE"></span><span id="arrow::cuda::CudaBufferReader"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_reader"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaBufferReader</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">io</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">internal</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">RandomAccessFileConcurrencyWrapper</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda16CudaBufferReaderE" title="arrow::cuda::CudaBufferReader"><span class="n"><span class="pre">CudaBufferReader</span></span></a><span class="p"><span class="pre">></span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferReaderE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>File interface for zero-copy read from CUDA buffers. </p> |
| <p>CAUTION: reading to a <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a> returns a <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a> pointing to device memory. It will generally not be compatible with Arrow code expecting a buffer pointing to CPU memory. Reading to a raw pointer, though, copies device memory into the host memory pointed to. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferReader6closedEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferReader6closedEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferReader6closedEv"></span><span id="arrow::cuda::CudaBufferReader::closedC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_reader_1a0d572faa3e6b61d8df77b677549a6049"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">closed</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferReader6closedEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return whether the stream is closed. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferReader18supports_zero_copyEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferReader18supports_zero_copyEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferReader18supports_zero_copyEv"></span><span id="arrow::cuda::CudaBufferReader::supports_zero_copyC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_reader_1ab01cdb213d900351c43dba8078c81f10"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">supports_zero_copy</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferReader18supports_zero_copyEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return true if InputStream is capable of zero copy <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a> reads. </p> |
| <p>Zero copy reads imply the use of Buffer-returning <a class="reference internal" href="io.html#classarrow_1_1io_1_1_readable_1a1ffee8b3491907c625faff85274eee54"><span class="std std-ref">Read()</span></a> overloads. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferWriterE"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferWriterE"></span><span id="_CPPv2N5arrow4cuda16CudaBufferWriterE"></span><span id="arrow::cuda::CudaBufferWriter"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaBufferWriter</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">io</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">WritableFile</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferWriterE" title="Link to this definition">#</a><br /></dt> |
| <dd><p>File interface for writing to CUDA buffers, with optional buffering. </p> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferWriter5CloseEv"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferWriter5CloseEv"></span><span id="_CPPv2N5arrow4cuda16CudaBufferWriter5CloseEv"></span><span id="arrow::cuda::CudaBufferWriter::Close"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a0ea8c0db5348cb6c7a95581545708106"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Close</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5CloseEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Close writer and flush buffered bytes to GPU. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferWriter6closedEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferWriter6closedEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferWriter6closedEv"></span><span id="arrow::cuda::CudaBufferWriter::closedC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a505faef7022ad871885c9bcb43aa459b"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">closed</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter6closedEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return whether the stream is closed. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferWriter5FlushEv"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferWriter5FlushEv"></span><span id="_CPPv2N5arrow4cuda16CudaBufferWriter5FlushEv"></span><span id="arrow::cuda::CudaBufferWriter::Flush"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a5b1378916dcf383f54bbe22ae6519119"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Flush</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5FlushEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Flush buffered bytes to GPU. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferWriter5WriteEPKv7int64_t"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferWriter5WriteEPKv7int64_t"></span><span id="_CPPv2N5arrow4cuda16CudaBufferWriter5WriteEPKv7int64_t"></span><span id="arrow::cuda::CudaBufferWriter::Write__voidCP.int64_t"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a6f581e34f2ab08354be9ad8d2c0c5e7a"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Write</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">nbytes</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5WriteEPKv7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Write the given data to the stream. </p> |
| <p>This method always processes the bytes in full. Depending on the semantics of the stream, the data may be written out immediately, held in a buffer, or written asynchronously. In the case where the stream buffers the data, it will be copied. To avoid potentially large copies, use the Write variant that takes an owned <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a>. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferWriter4TellEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferWriter4TellEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferWriter4TellEv"></span><span id="arrow::cuda::CudaBufferWriter::TellC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a902e42338fef8ba4955ab8e548f25acc"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">int64_t</span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Tell</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="k"><span class="pre">override</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter4TellEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Return the position in this stream. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaBufferWriter13SetBufferSizeEK7int64_t"> |
| <span id="_CPPv3N5arrow4cuda16CudaBufferWriter13SetBufferSizeEK7int64_t"></span><span id="_CPPv2N5arrow4cuda16CudaBufferWriter13SetBufferSizeEK7int64_t"></span><span id="arrow::cuda::CudaBufferWriter::SetBufferSize__int64_tC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1afe2b3f481f6dc35d292b2b808f5c4aae"></span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">SetBufferSize</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">buffer_size</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaBufferWriter13SetBufferSizeEK7int64_t" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Set CPU buffer size to limit calls to cudaMemcpy. </p> |
| <p> |
| By default writes are unbuffered </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>buffer_size</strong> – <strong>[in]</strong> the size of CPU buffer to allocate </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferWriter11buffer_sizeEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferWriter11buffer_sizeEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferWriter11buffer_sizeEv"></span><span id="arrow::cuda::CudaBufferWriter::buffer_sizeC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1a2a552698ce0327a211d7cc21ba44a7b6"></span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">buffer_size</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter11buffer_sizeEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Returns size of host (CPU) buffer, 0 for unbuffered. </p> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaBufferWriter18num_bytes_bufferedEv"> |
| <span id="_CPPv3NK5arrow4cuda16CudaBufferWriter18num_bytes_bufferedEv"></span><span id="_CPPv2NK5arrow4cuda16CudaBufferWriter18num_bytes_bufferedEv"></span><span id="arrow::cuda::CudaBufferWriter::num_bytes_bufferedC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_buffer_writer_1aab6152a10e047d397137b5021e9a7292"></span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">num_bytes_buffered</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter18num_bytes_bufferedEv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Returns number of bytes buffered on host. </p> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| </section> |
| <section id="ipc"> |
| <h2>IPC<a class="headerlink" href="#ipc" title="Link to this heading">#</a></h2> |
| <dl class="cpp class"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaIpcMemHandleE"> |
| <span id="_CPPv3N5arrow4cuda16CudaIpcMemHandleE"></span><span id="_CPPv2N5arrow4cuda16CudaIpcMemHandleE"></span><span id="arrow::cuda::CudaIpcMemHandle"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_ipc_mem_handle"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CudaIpcMemHandle</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandleE" title="Link to this definition">#</a><br /></dt> |
| <dd><div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4cuda16CudaIpcMemHandle9SerializeEP10MemoryPool"> |
| <span id="_CPPv3NK5arrow4cuda16CudaIpcMemHandle9SerializeEP10MemoryPool"></span><span id="_CPPv2NK5arrow4cuda16CudaIpcMemHandle9SerializeEP10MemoryPool"></span><span id="arrow::cuda::CudaIpcMemHandle::Serialize__MemoryPoolPC"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_ipc_mem_handle_1a99188e16d66e59b1b260fc6af5c8293f"></span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="memory.html#_CPPv4N5arrow6BufferE" title="arrow::Buffer"><span class="n"><span class="pre">Buffer</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Serialize</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="memory.html#_CPPv4N5arrow10MemoryPoolE" title="arrow::MemoryPool"><span class="n"><span class="pre">MemoryPool</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">pool</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><a class="reference internal" href="memory.html#_CPPv4N5arrow19default_memory_poolEv" title="arrow::default_memory_pool"><span class="n"><span class="pre">default_memory_pool</span></span></a><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">)</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4cuda16CudaIpcMemHandle9SerializeEP10MemoryPool" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Write <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_ipc_mem_handle"><span class="std std-ref">CudaIpcMemHandle</span></a> to a <a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a>. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>pool</strong> – <strong>[in]</strong> a <a class="reference internal" href="memory.html#classarrow_1_1_memory_pool"><span class="std std-ref">MemoryPool</span></a> to allocate memory from </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="memory.html#classarrow_1_1_buffer"><span class="std std-ref">Buffer</span></a> or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| <div class="breathe-sectiondef docutils container"> |
| <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-static-functions">Public Static Functions</p> |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp" id="_CPPv4N5arrow4cuda16CudaIpcMemHandle10FromBufferEPKv"> |
| <span id="_CPPv3N5arrow4cuda16CudaIpcMemHandle10FromBufferEPKv"></span><span id="_CPPv2N5arrow4cuda16CudaIpcMemHandle10FromBufferEPKv"></span><span id="arrow::cuda::CudaIpcMemHandle::FromBuffer__voidCP"></span><span class="target" id="classarrow_1_1cuda_1_1_cuda_ipc_mem_handle_1a12b58c7ea0cbcc41a8bd7888cb2e93d6"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre"><</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre"><</span></span><a class="reference internal" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandleE" title="arrow::cuda::CudaIpcMemHandle"><span class="n"><span class="pre">CudaIpcMemHandle</span></span></a><span class="p"><span class="pre">></span></span><span class="p"><span class="pre">></span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FromBuffer</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">opaque_handle</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandle10FromBufferEPKv" title="Link to this definition">#</a><br /></dt> |
| <dd><p>Create <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_ipc_mem_handle"><span class="std std-ref">CudaIpcMemHandle</span></a> from opaque buffer (e.g. </p> |
| <p>from another process) </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p><strong>opaque_handle</strong> – <strong>[in]</strong> a CUipcMemHandle as a const void* </p> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>Handle or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </div> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp"> |
| <span class="target" id="group__cuda-ipc-functions_1ga6b0ace525a224b40ada79fe8e3ce5fc7"></span><span class="sig-name descname"><span class="pre">ARROW_CUDA_EXPORT</span> <span class="pre">Result<</span> <span class="pre">std::shared_ptr<</span> <span class="pre">CudaBuffer</span> <span class="pre">></span> <span class="pre">></span> <span class="pre">SerializeRecordBatch</span> <span class="pre">(const</span> <span class="pre">RecordBatch</span> <span class="pre">&batch,</span> <span class="pre">CudaContext</span> <span class="pre">*ctx)</span></span></dt> |
| <dd><p>Write record batch message to GPU device memory. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>batch</strong> – <strong>[in]</strong> record batch to write </p></li> |
| <li><p><strong>ctx</strong> – <strong>[in]</strong> <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_context"><span class="std std-ref">CudaContext</span></a> to allocate device memory from </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="cpp function"> |
| <dt class="sig sig-object cpp"> |
| <span class="target" id="group__cuda-ipc-functions_1gafa196e817e135087475d7ac24b342b63"></span><span class="sig-name descname"><span class="pre">ARROW_CUDA_EXPORT</span> <span class="pre">Result<</span> <span class="pre">std::shared_ptr<</span> <span class="pre">RecordBatch</span> <span class="pre">></span> <span class="pre">></span> <span class="pre">ReadRecordBatch</span> <span class="pre">(const</span> <span class="pre">std::shared_ptr<</span> <span class="pre">Schema</span> <span class="pre">></span> <span class="pre">&schema,</span> <span class="pre">const</span> <span class="pre">ipc::DictionaryMemo</span> <span class="pre">*dictionary_memo,</span> <span class="pre">const</span> <span class="pre">std::shared_ptr<</span> <span class="pre">CudaBuffer</span> <span class="pre">></span> <span class="pre">&buffer,</span> <span class="pre">MemoryPool</span> <span class="pre">*pool=default_memory_pool())</span></span></dt> |
| <dd><p>ReadRecordBatch specialized to handle metadata on CUDA device. </p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>schema</strong> – <strong>[in]</strong> the <a class="reference internal" href="datatype.html#classarrow_1_1_schema"><span class="std std-ref">Schema</span></a> for the record batch </p></li> |
| <li><p><strong>dictionary_memo</strong> – <strong>[in]</strong> DictionaryMemo which has any dictionaries. Can be nullptr if you are sure there are no dictionary-encoded fields </p></li> |
| <li><p><strong>buffer</strong> – <strong>[in]</strong> a <a class="reference internal" href="#classarrow_1_1cuda_1_1_cuda_buffer"><span class="std std-ref">CudaBuffer</span></a> containing the complete IPC message </p></li> |
| <li><p><strong>pool</strong> – <strong>[in]</strong> a <a class="reference internal" href="memory.html#classarrow_1_1_memory_pool"><span class="std std-ref">MemoryPool</span></a> to use for allocating space for the metadata </p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p><a class="reference internal" href="table.html#classarrow_1_1_record_batch"><span class="std std-ref">RecordBatch</span></a> or <a class="reference internal" href="support.html#classarrow_1_1_status"><span class="std std-ref">Status</span></a></p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </section> |
| </section> |
| |
| |
| </article> |
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| <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#contexts">Contexts</a><ul class="visible nav section-nav flex-column"> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManagerE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaDeviceManager</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManager9GetDeviceEi"><code class="docutils literal notranslate"><span class="pre">GetDevice()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManager10GetContextEi"><code class="docutils literal notranslate"><span class="pre">GetContext()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManager16GetSharedContextEiPv"><code class="docutils literal notranslate"><span class="pre">GetSharedContext()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManager12AllocateHostEi7int64_t"><code class="docutils literal notranslate"><span class="pre">AllocateHost()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaDeviceManager8FreeHostEPv7int64_t"><code class="docutils literal notranslate"><span class="pre">FreeHost()</span></code></a></li> |
| </ul> |
| </li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContextE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaContext</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext8AllocateE7int64_t"><code class="docutils literal notranslate"><span class="pre">Allocate()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext4FreeEPv7int64_t"><code class="docutils literal notranslate"><span class="pre">Free()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext4ViewEP7uint8_t7int64_t"><code class="docutils literal notranslate"><span class="pre">View()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext13OpenIpcBufferERK16CudaIpcMemHandle"><code class="docutils literal notranslate"><span class="pre">OpenIpcBuffer()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext14CloseIpcBufferEP10CudaBuffer"><code class="docutils literal notranslate"><span class="pre">CloseIpcBuffer()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext11SynchronizeEv"><code class="docutils literal notranslate"><span class="pre">Synchronize()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda11CudaContext6handleEv"><code class="docutils literal notranslate"><span class="pre">handle()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda11CudaContext14memory_managerEv"><code class="docutils literal notranslate"><span class="pre">memory_manager()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda11CudaContext6deviceEv"><code class="docutils literal notranslate"><span class="pre">device()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda11CudaContext13device_numberEv"><code class="docutils literal notranslate"><span class="pre">device_number()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda11CudaContext16GetDeviceAddressEP7uint8_t"><code class="docutils literal notranslate"><span class="pre">GetDeviceAddress()</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#devices">Devices</a><ul class="visible nav section-nav flex-column"> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDeviceE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaDevice</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice9type_nameEv"><code class="docutils literal notranslate"><span class="pre">type_name()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice8ToStringEv"><code class="docutils literal notranslate"><span class="pre">ToString()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice6EqualsERK6Device"><code class="docutils literal notranslate"><span class="pre">Equals()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice22default_memory_managerEv"><code class="docutils literal notranslate"><span class="pre">default_memory_manager()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice11device_typeEv"><code class="docutils literal notranslate"><span class="pre">device_type()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice9device_idEv"><code class="docutils literal notranslate"><span class="pre">device_id()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice13device_numberEv"><code class="docutils literal notranslate"><span class="pre">device_number()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice11device_nameEv"><code class="docutils literal notranslate"><span class="pre">device_name()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice12total_memoryEv"><code class="docutils literal notranslate"><span class="pre">total_memory()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice6handleEv"><code class="docutils literal notranslate"><span class="pre">handle()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice10GetContextEv"><code class="docutils literal notranslate"><span class="pre">GetContext()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice16GetSharedContextEPv"><code class="docutils literal notranslate"><span class="pre">GetSharedContext()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice18AllocateHostBufferE7int64_t"><code class="docutils literal notranslate"><span class="pre">AllocateHostBuffer()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice10MakeStreamEj"><code class="docutils literal notranslate"><span class="pre">MakeStream()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice10WrapStreamEPvN6Stream12release_fn_tE"><code class="docutils literal notranslate"><span class="pre">WrapStream()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice4MakeEi"><code class="docutils literal notranslate"><span class="pre">Make()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice6StreamE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaDevice::Stream</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h5 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice6Stream9WaitEventERKN6Device9SyncEventE"><code class="docutils literal notranslate"><span class="pre">WaitEvent()</span></code></a></li> |
| <li class="toc-h5 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaDevice6Stream11SynchronizeEv"><code class="docutils literal notranslate"><span class="pre">Synchronize()</span></code></a></li> |
| </ul> |
| </li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEventE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaDevice::SyncEvent</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h5 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEvent4WaitEv"><code class="docutils literal notranslate"><span class="pre">Wait()</span></code></a></li> |
| <li class="toc-h5 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaDevice9SyncEvent6RecordERKN6Device6StreamE"><code class="docutils literal notranslate"><span class="pre">Record()</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManagerE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaMemoryManager</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferReaderENSt10shared_ptrI6BufferEE"><code class="docutils literal notranslate"><span class="pre">GetBufferReader()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManager15GetBufferWriterENSt10shared_ptrI6BufferEE"><code class="docutils literal notranslate"><span class="pre">GetBufferWriter()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManager14AllocateBufferE7int64_t"><code class="docutils literal notranslate"><span class="pre">AllocateBuffer()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda17CudaMemoryManager11cuda_deviceEv"><code class="docutils literal notranslate"><span class="pre">cuda_device()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManager19MakeDeviceSyncEventEv"><code class="docutils literal notranslate"><span class="pre">MakeDeviceSyncEvent()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda17CudaMemoryManager19WrapDeviceSyncEventEPvN6Device9SyncEvent12release_fn_tE"><code class="docutils literal notranslate"><span class="pre">WrapDeviceSyncEvent()</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
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| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBufferE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaBuffer</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda10CudaBuffer10CopyToHostEK7int64_tK7int64_tPv"><code class="docutils literal notranslate"><span class="pre">CopyToHost()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBuffer12CopyFromHostEK7int64_tPKv7int64_t"><code class="docutils literal notranslate"><span class="pre">CopyFromHost()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBuffer14CopyFromDeviceEK7int64_tPKv7int64_t"><code class="docutils literal notranslate"><span class="pre">CopyFromDevice()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBuffer21CopyFromAnotherDeviceERKNSt10shared_ptrI11CudaContextEEK7int64_tPKv7int64_t"><code class="docutils literal notranslate"><span class="pre">CopyFromAnotherDevice()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBuffer12ExportForIpcEv"><code class="docutils literal notranslate"><span class="pre">ExportForIpc()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda10CudaBuffer10FromBufferENSt10shared_ptrI6BufferEE"><code class="docutils literal notranslate"><span class="pre">FromBuffer()</span></code></a></li> |
| </ul> |
| </li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda14CudaHostBufferE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaHostBuffer</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda14CudaHostBuffer16GetDeviceAddressERKNSt10shared_ptrI11CudaContextEE"><code class="docutils literal notranslate"><span class="pre">GetDeviceAddress()</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
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| <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#memory-input-output">Memory Input / Output</a><ul class="visible nav section-nav flex-column"> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferReaderE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaBufferReader</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferReader6closedEv"><code class="docutils literal notranslate"><span class="pre">closed()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferReader18supports_zero_copyEv"><code class="docutils literal notranslate"><span class="pre">supports_zero_copy()</span></code></a></li> |
| </ul> |
| </li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferWriterE"><code class="docutils literal notranslate"><span class="pre">arrow::cuda::CudaBufferWriter</span></code></a><ul class="nav section-nav flex-column"> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5CloseEv"><code class="docutils literal notranslate"><span class="pre">Close()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter6closedEv"><code class="docutils literal notranslate"><span class="pre">closed()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5FlushEv"><code class="docutils literal notranslate"><span class="pre">Flush()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferWriter5WriteEPKv7int64_t"><code class="docutils literal notranslate"><span class="pre">Write()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter4TellEv"><code class="docutils literal notranslate"><span class="pre">Tell()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaBufferWriter13SetBufferSizeEK7int64_t"><code class="docutils literal notranslate"><span class="pre">SetBufferSize()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter11buffer_sizeEv"><code class="docutils literal notranslate"><span class="pre">buffer_size()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaBufferWriter18num_bytes_bufferedEv"><code class="docutils literal notranslate"><span class="pre">num_bytes_buffered()</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
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| <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#ipc">IPC</a><ul class="visible nav section-nav flex-column"> |
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| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4NK5arrow4cuda16CudaIpcMemHandle9SerializeEP10MemoryPool"><code class="docutils literal notranslate"><span class="pre">Serialize()</span></code></a></li> |
| <li class="toc-h4 nav-item toc-entry"><a class="reference internal nav-link" href="#_CPPv4N5arrow4cuda16CudaIpcMemHandle10FromBufferEPKv"><code class="docutils literal notranslate"><span class="pre">FromBuffer()</span></code></a></li> |
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